53263435990 has 16 divisors (see below), whose sum is σ = 95895463248. Its totient is φ = 21300645856.

The previous prime is 53263435963. The next prime is 53263435991. The reversal of 53263435990 is 9953436235.

It is a super-2 number, since 2×53263435990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53263435991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543577 + ... + 634036.

It is an arithmetic number, because the mean of its divisors is an integer number (5993466453).

Almost surely, 2^53263435990 is an apocalyptic number.

53263435990 is a deficient number, since it is larger than the sum of its proper divisors (42632027258).

53263435990 is a wasteful number, since it uses less digits than its factorization.

53263435990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182143.

The product of its (nonzero) digits is 2624400, while the sum is 49.

The spelling of 53263435990 in words is "fifty-three billion, two hundred sixty-three million, four hundred thirty-five thousand, nine hundred ninety".